Means for enabling liquids to be drawn off from closed containers.



F P. HUTSON.

MEANS FOR ENABLING LIQUIDSTO BE DRAWN OFF FROM CLOSED CONTAINERS.

APPLICATION FILED 1ULY18,1912.

1,18%,375. I Patented May9,1916.

THE COLUMBIA PLANOCKRAPH co., WASHlNGTCIN, 0v 4:.

nia'rr *sra rs rarnnr I PETER HUTSON, F FBANKTON J UN GTION, NEWZEALAND.

MEANS FOR ENABLING LIQUIDS TO BE DRAWN OFF FROM CLOSED CONTAINERS,

Specification of Letters Patent.

fiatented May El, 1916..

Application filed July 18, 1912.. Serial No. 710,272.

. the following to be a full, clear, and exact description of the same.

This invention relates to means for allow- 7 ing liquids to be drawn oilfrom closed containers, and more especially such liquids as are usuallycharged'with a solution of carbon dioxid or any similar gas.

The object of the invention is to provide a means whereby liquids andmore especially carbonated or the like liquids may be allowed or enabledto be drawn oil from a closed container. According hereto a device whichallows of the admission of air is employed. The device may be made ature in the plug or stopper of a container, or it may be aseparateinteger adapted to be applied to any container. The essentialfeatures of such device include a hollow cylinder, a valve within thecylinder and a spring device which normally tends'to keep suchvalveclosed. The valve is supplied with a device for at will holding thevalve open and with an extension for operating purposes.

In the following description except where the context otherwiserequires, the invention will be described with reference to containersfor aerated liquids, but I do not limit the invention to suchapplication.

Although the above are the essential features of my invention, itincludes also various modifications in make or construction which willbe more fully set out in their proper place in the specification and delimitated in the claims.

The invention is fully illustrated in the accompanying sheet of drawingsforming a partof this specification and wherein similar numerals ofreference indicate similar parts throughout the different views.

Figure 1, is a view of a barrel or the like having the invention appliedto the bung or to any other suitable part. Fig. 2, is a sectional viewthrough the device in a form suitable for barrels, or the like. Fig. 3,is a view of part of the device showing a detail of Fig. 2. 7

Referring now to the drawings the device consists a hollow cylinder 1having a chamber 2. A valve seating 3 screws into the top of thecylinder 1, and has a milled. edge a to facilitate turning. The seating3 has a passage 5 through its center. A valve 6 with a stem 7 guidedthrough the passage 5, is provided with a handle 8. A washer of rubber 9or any other suitable material is employed between the valve and theseat for making the valve air tight. A clearance 10 is formed by thevalve stem 7 being made of a smaller diameter than the passage Thebottom portion 11 of'the cylinder 1 is of reduced diameter andexternally threaded. Through such lower and reduced portion.communication is made to the interior of the chamber by means of apassage 12 therethrough. A spring 13 in compression be tween the lowerportion 11 and the valve 6 normally retains the valve upon its seat. Thereduced end 11 is of conical form and externally threaded for thepurpose of screwing into the wooden or the like wall of a container orinto a bung 19 as. shown in Fig. 1. 'Extending up from the valve seatingin a cylindrical wall 2-0 having a vertical slot 21 so constructed as toform a bayonet joint with a pin 22 projecting from the valve stem 7. Theobject of the bayonet joint is to retain the valve open when a greatquantlty of hquld has to be drawn oil from the barrel. By turning thehandle 23 back slightly the spring 13 will immediately close the valve.

The operation of the device is as follows :Aerated or the like gaseousliquid is contained in the container 17 and when on turning the tap 18the operator finds that the pressure of the superincumbent air or gasabove the liquid will not allow the liquid to flow freely through thetap, he then depresses the head 8 thereby opening the air admissionvalve 6. Air then passes through the clearance 5 past the valve 6 andthence to the chamber 2 and through the passage 12 and into thecontainer 1'7. With the admission of such air into the container thesuperincumbent pressure will be increased, and the liquid will freelyfiow through the open tap.

The device may be made of any material such as gun-metal, aluminium orother metal which is not corroded or acted upon chemically by thecontained liquid or by the gases or vapors given off therefrom.

Vhat I desire to secure by Letters Patent of the United States is i 1.In a vent device, the combination of a cylindrical chamber; a plug inthe upper end thereof and provided with a central opening and anupstanding wall surrounding the same and having an angular slot therein;a valve stem loosely received by said opening; a piston-like valve onthe lower end of the stem and loosely received in the chamber; a washeron the upper face of said valve; a pin projecting from said stem throughsaid slot; and a spring for 'yieldably pressing the valve against saidplug, said pin and slot cooperating to hold the valve in open positionagainst the action of said spring.

2. In a vent device, the combination of a hollow cylindrical chamberhaving a lower reducedend having a passage therethrough; a valve plug inthe upper end of the chamber and provided with a central opening and anup-standin'g cylindrical wall surrounding the opening and provided withan L-shaped bayonet slot having an open upper end; a valve stem passingloosely through said opening; a piston-like valve on the lower end'ofthe stem and looselyreceived in the chamber; a washer on said valve andsur rounding the stem; a radial pin projecting from said stem andengaging in said slot;

and a spring interposed between the lower part of the chamber and thevalve, said pin and slot cooperatingto hold the valve in open positionagainst the action of said spring.

3. In a vent device, the combination of a hollow cylindrical chamberhaving an internally threaded upper end and provided at its lower endwith an externally threaded reduced portion integral therewith; a valveplug screwed into said upper end and provided with a central opening andan upstanding cylindrical wall surrounding the opening and havingtherein an L-shaped bayonet slot open at its upper end; a. T- shapedvalve stem passing loosely through said opening; a piston-like valve onthe lower'end of the stem and loosely received in said chamber; a rubberwasher on said valve and surrounding the stem; a radial pin projectingfrom said stem and engaging in said slot, and a spiral spring in thechamber between the lower part thereof and the valve, said pin and slotcooperating to hold the valve inopen position against the action of saidspring.

4. In a device for enabling liquids to be drawn off from closedcontainers, the combination of a hollow cylinder, a valve seatingscrewed into said cylinder, a passage through said seating, a valve uponthe under side of said valve seating, a valve stem to said valve passingthrough said passage, said valve stem being of a smaller diameter thanthe said passage to allow air to pass through said passage, a coilspring within said cylinder in compression between the said valve andthe bottom of the said cylin-' der, a cylindrical wall extendingup fromthe top of the valve seating, a vertical slot in said wall having arecess at its bottom copies of this patent may be obtained for fivecentseach, by addressing the Commissioner of Patents, Washington, D. G.

